code: def setUp(self):
      self.temporary_cache_dir_context = (
          test_raw.use_temporary_cache_dir()
      )
      self.cache_dir = self.temporary_cache_dir_context.__enter__()
      self.header = "\n".join(
          ["#include <" + h + ">" for h in core._cupy_header_list]
      )
  
imports: import unittest
  import sys
  import numpy
  import pytest
  import cupy
  from cupy._core import core
  from cupy import testing
  from cupy_tests.core_tests import test_raw
label_desc: Use image node_id 1 for calling the TestCuPyHeaders obj's underlying member method code with example usage: obj.setUp() without return types